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[vsnet-alert 4255] RX J0640-24 outburst

RX J0640-24 outburst

  The ROSAT-selected cataclysmic variable (very likley a dwarf nova),
RX J0640-24 is again reported to undergo an outburst.  The first-ever
outburst since the discovery was reported by Patrick Schmeer (vsnet-alert
3956), during which hump-like modulation was found by CCD photometry
by Makoto Uemura and Taichi Kato (vsnet-alert 3968).  The subsequent
rapid fading (vsnet-alert 3969, 3970) suggests that the system may have
a short orbital period.  A photometric campaign has been conducted
by Uemura (vsnet-alert 3968).

  YYYYMMDD(UT)   mag  observer
  20000129.819  <145  (B. Monard)
  20000130.819  <144  (B. Monard)
  20000201.780  <144  (B. Monard)
  20000202.493   148  (R. Stubbings)
  20000202.742  <144  (B. Monard)
  20000204.799  <145  (B. Monard)
  20000205.498   151  (R. Stubbings)
  20000206.490   151  (R. Stubbings)
  20000218.465  <120  (R. Stubbings)
  20000222.459   120  (R. Stubbings)

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